Hey there! I am new to Pinball Nirvana and looking for some help. I've scoured and scoured through countless threads so I am trying to get some active help. I have a Bally Pool Sharks, when I got it it had some problems, the right slingshot was stuck, countless blown fuses, etc. Fast forward to today. Currently I am having issues with F4 which controls both drop targets, talking sharky, and both slingshots. This blows as soon as the machine is turned on. The fuse gets about 76VAC. I've replaced the Q14 transistor as i saw on other threads that it was a possible cause but with no luck.

The f4 fuse also controls the common return line for the 50v coils on the a side of the a/c relay. Keeping the original wires unsoldered, unsolder these violet with color tracer wires from these coils. Left and right drop target resets, diverter , and knocker. Test for fuse blow on power up. Inspect and check coils for shorts. Resolder wires until fuse blows to find bad coil.